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參數(shù)資料
| 型號： | MAX804 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | 3.0V/3.3V Microprocessor Supervisory Circuits(具有看門狗和支持備用電池,3V高精度復(fù)位器(高電壓復(fù)位)) |
| 中文描述： | 3.0V/3.3V微處理器監(jiān)控電路 |
| 文件頁數(shù)： | 4/12頁 |
| 文件大?。?/td> | 134K |
| 代理商： | MAX804 |
M
3.0V /3.3V Mic roproc essor S upervisory Circ uits
4
_______________________________________________________________________________________
nA
-500
2
500
PFI Input Current
-25
2
25
MIN
TYP
MAX
ns
ns
μA
100
20
60
60
t
MR
t
MD
–M—–Pulse Width
–M—–to Reset Delay
–M—–Pull-Up Current
V
0.3 x V
CC
V
IH
V
IL
–M—–Input Threshold
0.7 x V
CC
500
350
20
V
0.7 x V
CC
V
IH
V
IL
0.3 x V
CC
WDI Input Threshold
1.12
1.60
2.24
ns
100
20
WDI Pulse Width
Note 1:
CC
supply current, logic input leakage, watchdog functionality (MAX690_/802_/805_/804_), –M—–functionality
V
VBATT = 3.6V, and V
CC
= 5.5V. The state of –————–or RESET and –——Ois tested at V
CC
= V
CC
min.
Note 2:
Tested at VBATT = 3.6V, V
CC
= 3.5V and 0V. The battery current will rise to 10μA over a narrow transition window around
V
CC
= 1.9V.
Note 3:
Leakage current into the battery is tested under the worst-case conditions at V
CC
= 5.5V, VBATT = 1.8V and at V
CC
= 1.5V,
VBATT= 1.0V.
Note 4:
Guaranteed by design.
Note 5:
When V
SW
> V
CC
> VBATT, V
OUT
remains connected to V
CC
until V
CC
drops below VBATT. The V
CC
-to-VBATT comparator
has a small 25mV typical hysteresis to prevent oscillation. For V
CC
< 1.75V (typ), V
OUT
switches to VBATT regardless of the
voltage on VBATT.
Note 6:
When VBATT > V
CC
> V
SW
, V
OUT
remains connected to V
CC
until V
CC
drops below the battery switch threshold (V
SW
).
Note 7:
V
OUT
CC
when V
CC
rises above the reset threshold, independent of VBATT. Switchover back to
V
CC
switches from VBATT to V
switchover occurs 200ms prior to reset.
Note 8:
The reset threshold tolerance is wider for V
CC
rising than for V
CC
falling to accommodate the 10mV typical hysteresis, which
prevents internal oscillation.
Note 9:
The leakage current into or out of the RESET pin is tested with RESET asserted (RESET output high impedance).
MAX690_M, MAX802_M,
MAX804_M, MAX805_M
-1
0.01
1
-10
0.01
10
μA
WDI Input Current
MAX690/MAX802/MAX804/
MAX805 only
sec
t
WD
Watchdog Timeout Period
MAX690_/MAX704_/MAX805_
V
1.187
1.237
1.287
V
PFT
PFI Input Threshold
1.212
1.237
1.262
SYMBOL
PARAMETER
UNITS
MAX704_/MAX806_ only
MAX704_/MAX806_ only
MAX704_/MAX806_ only, –M—–= 0V, V
CC
= 3V
0V< V
CC
< 5.5V
MAX704_/MAX806_ only
MAX690_M, MAX704_M, MAX80_ _M
V
CC
< 3.6V
V
PFI
falling
CONDITIONS
MAX690_/MAX802_/MAX804_/MAX805_ only
V
CC
< 3.6V
MAX690_C/E, MAX704_C/E, MAX80_ _C/E
MAX802_C/E, MAX804_C/E,
MAX806_C/E
MAX690_C/E, MAX802_C/E,
MAX804_C/E, MAX805_C/E
MAX690_/MAX802_/MAX804_/MAX805_ only
MAX690_M, MAX704_M, MAX80_ _M
mV
10
2
25
25
nA
-500
2
500
PFI Input Current
-25
V
PFH
PFI Hysteresis, PFI Rising
10
20
MAX690_M, MAX704_M, MAX80_ _M
V
CC
< 3.6V
MAX690_C/E, MAX704_C/E, MAX80_ _C/E
MAX690_C/E, MAX704_C/E,
MAX80_ _C/E
ELECTRICAL CHARACTERISTICS (continued)
(V
= 3.17V to 5.5V for the MAX690T/MAX704T/MAX80_T, V
= 3.02V to 5.5V for the MAX690S/MAX704S/MAX80_S, V
CC
= 2.72V to
5.5V for the MAX690R/MAX704R/MAX80_R; VBATT = 3.6V; T
A
= T
MIN
to T
MAX
; unless otherwise noted. Typical values are at T
A
= +25C.)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX804_C/D | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:3.0V/3.3V Microprocessor Supervisory Circuits |
| MAX804_CPA | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:3.0V/3.3V Microprocessor Supervisory Circuits |
| MAX804_CSA | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:3.0V/3.3V Microprocessor Supervisory Circuits |
| MAX804_EPA | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:3.0V/3.3V Microprocessor Supervisory Circuits |
| MAX804_ESA | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:3.0V/3.3V Microprocessor Supervisory Circuits |
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